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Waterbase and Discharge
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White Outline
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Topic: White Outline (Read 1309 times)
ScreenPrinter123
Hero Member
Posts: 863
White Outline
«
on:
February 12, 2013, 04:22:00 PM »
(1) Attached is the first color in sequence -- no other screen before it. On some shirts there is this white discharged outline and on others there is none. Explanation anyone?
(2) You dischargers -- do you normally have your squeegee going "rat a tat tat tat tat tat" (it's lifting up and going down really fast, as opposed to a smooth stroke with no jerking) as it prints? It's obviously pressure related, but at 40-45 psi it's doing it non-stop. Typical or just reduce pressure?
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ebscreen
!!!
Gonzo Member
Posts: 4277
Re: White Outline
«
Reply #1 on:
February 12, 2013, 04:43:27 PM »
No idea on the white outline, but as for the squeegee, what durometer and angle are you using.
(for discussions sake, lets say 90 is straight up an down, 0 is flat, and 45 between, I know machines
mark this differently)
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East Bay Screenprint
ScreenPrinter123
Hero Member
Posts: 863
Re: White Outline
«
Reply #2 on:
February 12, 2013, 04:54:37 PM »
75/95/75. Had it at 78 degrees, then bumped it back to 85 degrees, but to no avail, even after taking off pressure when bumping it back to 85.
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ebscreen
!!!
Gonzo Member
Posts: 4277
Re: White Outline
«
Reply #3 on:
February 12, 2013, 05:08:46 PM »
Try a softer squeegee, we use 60 for most everything WB. Some bend is good.
Typically I've seen head chatter when you are using a hard squeegee and too much pressure.
Not a good thing IMO.
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East Bay Screenprint
JBLUE
!!!
Gonzo Member
Posts: 2036
Re: White Outline
«
Reply #4 on:
February 12, 2013, 08:12:43 PM »
Go to a softer squeegee. We use 65/90/65 for our WB. Sounds like you are putting way too much pressure with the squeegee sticking like that. It may also be due to your other problem in the other thread of under exposed screens getting soft and gummy.
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www.inkwerksspd.com
We are all born ignorant, but one must work hard to remain stupid...... Ben Franklin
tonypep
Ludicrous Speed Member
Posts: 5675
Re: White Outline
«
Reply #5 on:
February 13, 2013, 08:04:05 AM »
Exactly. You are squeezing out minute areas of activated water.
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tpepitone@jnjapparel.net
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